The surgery fails.
By the novel's end, Charlie's IQ collapses back toward baseline, and we're trained to read this as tragedy—the intervention didn't work, but Keyes built something stranger into the text.
The progress reports don't track Charlie's intelligence. They construct it.
Charlie doesn't become smarter and then dumb again. He becomes observed, then over-observed, then observed so intensely he fragments. The format itself—the constant demand to articulate, measure, diagnose himself—is what transforms him, not the drug.
This feedback loop—self-measurement generating the self being measured—appears as the main event, not a side effect. The book's real horror isn't reversal. It's that Charlie's final clarity comes from knowing he's being watched and documented, until he stops being a person and becomes a data point observing itself.
Read Deborah Lupton's 'The Quantified Self' alongside Keyes—specifically her section on how self-tracking data becomes identity rather than evidence of it—and trace which parts describe fiction and which describe your actual phone.
Listen to the 'Flowers for Algernon' episode of the podcast 'Our Fake History' where Sebastian Major interviews Keyes's son—Keyes explicitly wanted the reports to show how self-awareness itself distorts the thing being aware, not whether the surgery 'worked.'